14
SPECIFICATION
OPERATING GUIDELINES
C. REWORKING GUIDE:
Convection style reworking :
The hand held convection style reworking is a newly developed
reworking style that reproduces the reflow oven soldering stages using
only a portable hand held reflow gun.
The system is specially designed to accommodate the necessary
safety precautions in reworking highly sensitive and sophisticated SMD
devices ,ICs, and components of plastic composition.
Note:
For larger sized PCB boards concentrate on the immediate
vicinity of the target device. With a radius of about 3 to 5 cm.
Stage 1: Preheating
1. Follow procedures in, “
A. INITIAL PROCEDURES
”.
2. Prepare the unit to be worked upon on a stable elevated
surface. A working platform with locking mechanisms to secure
the PCB is highly recommended. Use a preheating station if
appropriate.
3. Apply solder paste to PCB.
4. Lift up the hot air gun from the holder.
5. Turn the airflow control knob to medium airflow.
6. Set the temperature control knob to about 270 degrees Celsius.
7. Hold the hot air gun vertically on top of the target device,
leaving approximately 3 cm of space between the tip of the hot
air gun and the target device.
8. Begin preheating the target device by moving the hot air gun in
a slow spiral motion upon the target device. Continue this
motion for 1 to 2 minutes.
Four stages are developed to allow proper reflow of the target
device. Follow these stages to allow proper convection style
reworking.
11
Aoyue
936 规格
Aoyue
936 规格
OPERATING GUIDELINES
REMINDERS:
1. Make sure the equipment is placed on a flat stable surface and all the
heat‐generating components placed on their respective holders or stands.
2. Ensure all function switches are OFF prior to reworking.
3. Ensure all terminal connections are properly secured.
4. Air flow can be increased by turning the air level control knob (“4” from
the panel) clockwise.
5. Air flow can be decreased by turning the air level control knob (“4” from
the panel) counter‐clockwise
6. Hot air gun temperature can be increased by turning the Temperature
control knob (“5” from the panel) clockwise.
7. Hot air gun temperature can be decreased by turning the air level control
knob (“5” from the panel) counter‐clockwise
8. When air level is set at maximum a whirling sound can be heard from the
hot air gun. This is normal as the increased power to the fan induced
more air to flow thru the hot air gun.
IMPORTANT:
Please refer to the
CONTROL PANEL GUIDE
page
for buttons and display panel directory.
